Used primarily as an intermediate in organic synthesis, especially in the pharmaceutical industry. It reacts readily with amines to form amides, making it valuable in the construction of active pharmaceutical ingredients. Commonly employed in the preparation of anti-inflammatory and central nervous system agents. Also utilized in the synthesis of agrochemicals and specialty polymers due to its ability to introduce cyclopentane-based structures that enhance molecular stability and lipophilicity. Its reactivity allows for efficient acylation under mild conditions, suitable for multi-step synthetic routes.